How about if you invest $1,000 today, for 40 years and expected to make 8% per year? c. If you invested $1,000 today at 6.0% return for 40 years..... Compounding a Cash Flow (Future Value of a single payment) \begin{tabular}{llc|} \multicolumn{1}{c|}{ EXCEL } & \multicolumn{1}{c|}{ MATH } & YOUR \\ \cline { 1 - 2 } NOTATION & \multicolumn{1}{c}{ FORMULA } & INPUTS \\ \hline & & \\ \hline PV & CF0 & 1,000 \\ \hline r & r & \\ \hline n & n & \\ \hline \end{tabular}